CN103152096B - A kind of optical branching device auto testing instrument and method of testing thereof - Google Patents
A kind of optical branching device auto testing instrument and method of testing thereof Download PDFInfo
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- CN103152096B CN103152096B CN201310019216.8A CN201310019216A CN103152096B CN 103152096 B CN103152096 B CN 103152096B CN 201310019216 A CN201310019216 A CN 201310019216A CN 103152096 B CN103152096 B CN 103152096B
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Abstract
The invention provides a kind of optical branching device auto testing instrument and method of testing thereof, comprise multi wave length illuminating source, optical branching device, test module, controller and computer, the input of described optical branching device and multi wave length illuminating source Fiber connection, the output of optical branching device is connected with the input end fiber of test module; Described optical branching device is provided with band fine folder base; Described test module comprises photodetector, stepping motor, described photodetector is high-speed sampling light power meter, photodetector is provided with a catch, and this catch is provided with a groove, and this groove makes synchronization only have the output light transmission of a passage of optical branching device; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is for controlling test module.Compared with prior art, optical branching device Auto-Test System of the present invention and method of testing, testing procedure is simple, can significantly improve testing efficiency and measuring accuracy.
Description
Technical field
The present invention relates to a kind of optical branching device tester, particularly relate to a kind of optical branching device auto testing instrument and method of testing thereof.
Background technology
Along with the investment orientation of optical fiber communication is by communication trunk, metropolitan area network etc. are to fiber-to-the-home future development, and the demand of fiber-to-the-home core light device optical branching device also will constantly expand.Optical branching device is one of most important passive device in optical fiber link, is the optical fiber tandem device with multiple input and multiple output.Optical branching device can be divided into fused tapered (FBT) and planar waveguide-type (PLC) two kinds by principle.
At present, in the field tests of planar optical waveguide splitter, main product is multichannel comprehensive tester, namely by 8 detectors, the mode of simultaneously testing 8 road PLC outputs carries out PLC test, this testing scheme is integrated with light source, optical switch module, Polarization Controller and 8 channel optical power meters, insertion loss can be carried out to PLC device, Polarization Dependent Loss, uniformity, the indexs such as supplementary load loss are tested, but because it uses 8 detectors, therefore unavoidably introduce interchannel drift and deviation, use mechanical type Polarization Controller, Polarization Dependent Loss test speed is slow and accuracy is low (three-wavelength test is about 30 seconds), because needs carry out rezero operation respectively to 8 passages, inefficiency, fiber stripping need be carried out to each port of PLC device output end, and use naked fine clamper, complex operation, introducing error is large, and test repeatability is poor, though there is producer to provide the fine fusion techniques of band, but be with fine heat sealing machine price very expensive, cost performance is not high, tradition 8 channel test system testing processs as shown in Figure 1.Therefore, the test of current plane optical waveguide splitter has become a lot of manufacturer's production capacity bottleneck, although market there is a lot of producer can provide multichannel PLC testing equipment, operating procedure is various, and testing efficiency is too low, the not high and less stable of measuring accuracy.
Summary of the invention
The object of the invention is to solve multi-channel analyzer testing efficiency of the prior art low, the problem of the lower and less stable of measuring accuracy, provides a kind of auto testing instrument of optical branching device and method of testing thereof to solve the problems referred to above.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of optical branching device auto testing instrument, it is characterized in that, comprise multi wave length illuminating source, optical branching device, test module, controller and computer, the input of described optical branching device and multi wave length illuminating source Fiber connection, the output of optical branching device is connected with the input end fiber of test module; Described optical branching device is provided with band fine folder base; Described test module comprises photodetector, stepping motor, described photodetector is high-speed sampling light power meter, photodetector is provided with a catch, and this catch is provided with a groove, and this groove makes synchronization only have the output light transmission of a passage of optical branching device; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is for controlling test module.
The width of described groove is 100 ± 25um.
Described test module also comprises motorized precision translation stage, and this motorized precision translation stage is used for moving photoconductor detector.
Be provided with manual platform below described band fibre folder base, described manual platform is for finely tuning the distance of optical branching device output and photodetector.
Described high-speed sampling light power meter sampling rate is 50K/S, and polarization module one second inherent poincare sphere produces 10000 polarization states.
The present invention also provides a kind of method of testing of optical branching device auto testing instrument, it is characterized in that, comprises the steps:
1) input of optical branching device is connected: after light source output fibre clip being clipped, put into the output welding by the input of path-splitting device and light source after clamp base build-in test reference light;
2) output of optical branching device is connected: divest coating after being accommodated by output ribbon fiber, cut by ribbon fiber end face and keep flat in clamp base;
3) test: after the distance of adjustment fiber end face, hit testing instrument starts, and automatically completes test.Described test parameter comprises insertion loss, return loss, Polarization Dependent Loss, directivity, uniformity.
Compared with prior art, optical branching device Auto-Test System of the present invention and method of testing, testing procedure is simple, can significantly improve testing efficiency and measuring accuracy.Eliminate the defect of troublesome operation when the drift of interchannel in multiple channel test scheme and measurement deviation and reference value are made zero.In connection output step, unsuccessfully repeat step without the fine welding of band, without IL and the PDL loss introduced during the fine welding of band, reducing extraneous coupling error, without the need to using the fine heat sealing machine of band, reducing equipment cost.Adopt high speed polarization module, poincare sphere coverage rate is high, and test value is more accurate.Adopt the test macro of independent development, completely with no paper storage can be realized, have and automatically generate the function such as test report, automatic classification.The present invention is applicable to the product test of dissimilar optical branching device, comprises planar waveguide-type optical branching device, fused tapered optical branching device.
Accompanying drawing explanation
Fig. 1 is traditional 8 channel test system testing process schematic diagrames;
Fig. 2 is the structural representation of the auto testing instrument of optical branching device of the present invention;
Fig. 3 is the slit schematic diagram on the catch of light power meter front end of the present invention;
Fig. 4 is optical branching device output ribbon fiber structural representation of the present invention;
Fig. 5 is test module schematic diagram of the present invention.
Embodiment
For making to have a better understanding and awareness architectural feature of the present invention and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
See Fig. 1 to Fig. 5, as shown in the figure, a kind of optical branching device auto testing instrument, comprise multi wave length illuminating source 1, optical branching device 2, test module 3, controller 4 and computer 5, the input of described optical branching device and multi wave length illuminating source Fiber connection, the output of optical branching device is connected with the input end fiber of test module; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is for controlling test module.
Described multi wave length illuminating source 1, can according to client's needs, built-in different wavelength, and such as, can use this four wave source, wavelength value is respectively 1030, and 1490,1550,1625.Multi wave length illuminating source and computer are provided with communication and are connected, can the data-signal that sends of receiving computer, and automatically carry out wavelength switching.
Described optical branching device 2 is provided with band fine folder base 21, and be provided with manual platform 22 below band fine folder base 21, described manual platform, for finely tuning the distance of optical branching device output and photodetector, makes photodetector receive the light source of output as far as possible completely.
Described test module 3 comprises photodetector 31, stepping motor 32, and described photodetector is high-speed sampling light power meter, and high-speed sampling light power meter sampling rate can reach 50K/S, and polarization module produced 10000 polarization states in one second in poincare sphere.Photodetector is provided with a catch, and this catch is provided with a groove, and this groove makes synchronization only have the output light transmission of a passage of optical branching device, the slit of this groove to be width be 100 ± 25um, the width of preferred groove be 100um(as shown in Figure 3); Stepping motor arranges dull and stereotyped formation motorized precision translation stage 33, and described motorized precision translation stage 33 is for moving photoconductor detector.
Described controller 4 is controllor for step-by-step motor, for Driving Stepping Motor, thus moving photoconductor detector.
Described computer 5 is for record test data, process test data, feedback data information (optical wavelength switches feedback).
Operation principle of the present invention is: light source exports from optical branching device output, the output light of high-speed sampling light power meter to optical branching device passage carries out luminous power sampling, computer records the luminous power data that high-speed sampling light power meter transmits automatically, controller receives the data message of computer feedback, controller Driving Stepping Motor drives high-speed sampling light power meter to move, high-speed sampling light power meter continues to carry out luminous power sampling to output light, so repeatedly perform the luminous power sampling to exporting light, the optical power loss value that computer automatic analysis is minimum.After the output light of all passages of optical branching device streaks from the detection slit of high-speed sampling light power meter completely, complete the test of a wavelength, computer is by information feed back to multi wave length illuminating source, and multi wave length illuminating source carries out wavelength switching automatically, carries out the test that Different lightwave is long.
Using method of the present invention comprises the steps:
1, put into clamp base after light source output fibre clip being clipped, with knob adjustment fiber end face apart from slit 0-10mm, preferred 1mm, carries out reference light setting.
2, the output line optical fiber splicer of the input of optical branching device and light source is welding together, does not need to carry out consolidation process.
3, put into heat-peeling forceps after being accommodated by fine for output end band fibre band folder, coat divested 3cm, with optical fiber cutter ribbon fiber end face is cut flat after put into clamp base, after the distance of adjustment fiber end face, hit testing starts.
4, test is carried out automatically, and after being completed, computer can record insertion loss, return loss, Polarization Dependent Loss, directivity, the uniformity of this optical branching device automatically, and it is generated test report automatically.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection range of application claims is defined by appending claims and equivalent thereof.
Claims (4)
1. an optical branching device auto testing instrument, it is characterized in that, comprise multi wave length illuminating source (1), optical branching device (2), test module (3), controller (4) and computer (5), the input of described optical branching device and multi wave length illuminating source Fiber connection, the output of optical branching device is connected with the input end fiber of test module; Described optical branching device is provided with band fine folder base (21); Described test module comprises photodetector (31), stepping motor (32), described photodetector is high-speed sampling light power meter, photodetector is provided with a catch, this catch is provided with a groove, and this groove makes synchronization only have the output light transmission of a passage of optical branching device; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is for controlling test module.
2. optical branching device auto testing instrument according to claim 1, is characterized in that, the slit of described groove to be width be 100 ± 25um.
3. optical branching device auto testing instrument according to claim 1, is characterized in that, described stepping motor is arranged dull and stereotyped formation motorized precision translation stage (33), motorized precision translation stage is used for moving photoconductor detector.
4. optical branching device auto testing instrument according to claim 1, it is characterized in that, described band fibre folder base (21) below is provided with manual platform (22), and described manual platform is for finely tuning the distance of optical branching device output and photodetector.
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| CN201310019216.8A CN103152096B (en) | 2013-01-18 | 2013-01-18 | A kind of optical branching device auto testing instrument and method of testing thereof |
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| CN201310019216.8A CN103152096B (en) | 2013-01-18 | 2013-01-18 | A kind of optical branching device auto testing instrument and method of testing thereof |
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| CN103152096A CN103152096A (en) | 2013-06-12 |
| CN103152096B true CN103152096B (en) | 2015-09-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9749043B2 (en) * | 2014-12-09 | 2017-08-29 | Exfo Inc. | Method for referencing an optical power loss measurement system, and associated computer readable memory and OPLM system |
| CN104618014B (en) * | 2015-03-03 | 2018-04-13 | 四川飞阳科技有限公司 | Optical branching device tests system |
| CN104713705B (en) * | 2015-03-11 | 2017-04-26 | 工业和信息化部邮电工业标准化研究所 | Method for testing optical property of fiber arrays |
| CN108036926A (en) * | 2018-01-02 | 2018-05-15 | 上海鸿珊光电子技术有限公司 | A kind of Manifold Light Way test equipment that optical detector is driven using lead screw motor |
| CN110702825A (en) * | 2019-09-25 | 2020-01-17 | 安徽皖仪科技股份有限公司 | Device and method for reducing noise and drift of multi-channel detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2116164A1 (en) * | 1994-02-22 | 1995-08-23 | Anton Strifler | An optical fiber testing and monitoring system with a bi-directional communication link |
| CN1477795A (en) * | 2002-08-22 | 2004-02-25 | �踻�����ܹ�ҵ�����ڣ�����˾ | Wavelength division multiplexer test system and its test method |
| CN102192830A (en) * | 2010-12-10 | 2011-09-21 | 上海霍普光通信有限公司 | PLC (Programmable Logic Controller) type optical splitter testing method |
| CN102594443A (en) * | 2011-01-10 | 2012-07-18 | 上海坤腾光电科技有限公司 | Performance test system for optical divider |
| CN203166919U (en) * | 2013-01-18 | 2013-08-28 | 上海全友通信技术有限公司 | Optical branching device automatic testing instrument |
-
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- 2013-01-18 CN CN201310019216.8A patent/CN103152096B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2116164A1 (en) * | 1994-02-22 | 1995-08-23 | Anton Strifler | An optical fiber testing and monitoring system with a bi-directional communication link |
| CN1477795A (en) * | 2002-08-22 | 2004-02-25 | �踻�����ܹ�ҵ�����ڣ�����˾ | Wavelength division multiplexer test system and its test method |
| CN102192830A (en) * | 2010-12-10 | 2011-09-21 | 上海霍普光通信有限公司 | PLC (Programmable Logic Controller) type optical splitter testing method |
| CN102594443A (en) * | 2011-01-10 | 2012-07-18 | 上海坤腾光电科技有限公司 | Performance test system for optical divider |
| CN203166919U (en) * | 2013-01-18 | 2013-08-28 | 上海全友通信技术有限公司 | Optical branching device automatic testing instrument |
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Inventor after: Chen Xinhua Inventor after: Fei Wenjie Inventor after: Lin Xiangzhong Inventor before: Lin Xiangzhong |
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Free format text: CORRECT: INVENTOR; FROM: LIN XIANGZHONG TO: CHEN XINHUA FEI WENJIE LIN XIANGZHONG |
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Effective date of registration: 20160112 Address after: 201109, Shanghai, Jinshan District Town, 3688 Ting Ting Road No. 5 B District Patentee after: SHANGHAI JOINWIT OPTOELECTRONIC TECH Co.,Ltd. Address before: 200245 Jiangchuan Road, Shanghai, No. 1800, No. Patentee before: SHANGHAI TRANSUNIQUE TECHNOLOGIES Co.,Ltd. |
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Granted publication date: 20150902 |